CALCULATION:Cost PRICE of table for the shopkeeper = PCOST price of table for Amal = (120/100) × p = 1.2pCost price of table for ASIM = (80/100) × p = 0.8pCost price of table for BIMAL = (130/100) × 1.2p = 1.56pCost price of table for Barun = (70/100) × 0.8p = 0.56p⇒ x = 1.56p, y = 0.56p⇒ (x – y)/p = (1.56 – 0.56)p/p = 1∴ The value of (x – y)/p is 1.